Granted , but then people with that mindset would find something even more silly to be obsessed with, like dividing into sects based on who throws rock most of the time, scissors most of the time, and paper most of the time. And believe me the wars fought over RPS would be just as bloody as the eenie meenie miney moe conflict.

Granted, but you live long enough to see the human race become the source of suffering for the other sentient species of the world as we start taking them over to purge their world of the resources we need for survival.

Granted but you are only popular as long as you are useful and unfortunately due to the multitude of wishes made your powers quickly burn out and evaporate but not before they take half of your remaining life with them.

Granted. So you travel time and in each instance that one of humanity's greatest achievements occurs you place a patent on it and become the richest man that ever lived as well as the most jaded due to not having one experience that you could not buy.

Granted but like Uncle Ben said, with great powers come great responsibility so with the emergence of those powers comes the responsibility to save the world. If you don't the army captures you and experiments until they can be duplicated and then they destroy you claiming that you were a threat to world peace that never existed.